Highest Common Factor of 391, 861, 546 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 391, 861, 546 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 391, 861, 546 is 1 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 391, 861, 546 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 391, 861, 546 is 1.
HCF(391, 861, 546) = 1
HCF of 391, 861, 546 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 391, 861, 546 is 1.
Highest Common Factor of 391,861,546 is 1
Step 1: Since 861 > 391, we apply the division lemma to 861 and 391, to get
861 = 391 x 2 + 79
Step 2: Since the reminder 391 ≠ 0, we apply division lemma to 79 and 391, to get
391 = 79 x 4 + 75
Step 3: We consider the new divisor 79 and the new remainder 75, and apply the division lemma to get
79 = 75 x 1 + 4
We consider the new divisor 75 and the new remainder 4,and apply the division lemma to get
75 = 4 x 18 + 3
We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get
4 = 3 x 1 + 1
We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get
3 = 1 x 3 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 391 and 861 is 1
Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(75,4) = HCF(79,75) = HCF(391,79) = HCF(861,391) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 546 > 1, we apply the division lemma to 546 and 1, to get
546 = 1 x 546 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 546 is 1
Notice that 1 = HCF(546,1) .
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Frequently Asked Questions on HCF of 391, 861, 546 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 391, 861, 546?
Answer: HCF of 391, 861, 546 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 391, 861, 546 using Euclid's Algorithm?
Answer: For arbitrary numbers 391, 861, 546 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.